Huu Nghi International Border Gate

Huu Nghi International Border Gate is a major Vietnam–China border crossing located on National Highway 1A in Dong Dang Town, Cao Loc District, Lang Son Province, about 170 km northeast of Hanoi. Marking the northern terminus of Highway 1A, it faces Youyiguan on the Chinese side in Guangxi. The gate features a prominent arch and border markers and serves as an important trade, tourism and transit point between the two countries.

Visitors can expect a large formal border gate complex with a white ceremonial arch, national flags, border markers, and immigration and customs buildings on both sides. The area is set in a valley surrounded by limestone hills along Highway 1A. Visitors can view the gate from the Vietnamese side, observe cross-border traffic and formalities, take photos from designated areas, and visit nearby shops and stalls serving travelers and traders.